Pipe-coupling.



WLL'IAM AUSTIN, `0F SCRANTON, if*nNNsYLvANIA..y

To all'who'm it may concern: Y

Be it known that I, rimani AUs'iiN,'a citizen 'of the United States, residing at. Scranton, in the county of Lackawanna and State of Pennsylvania,A have invented cer- 'tain new and useful Improvements in Pipe-A Couplings; Iand I ilo declare the `following to be' a full, clear, and exact deseripf tion of the invention, such as will enable others skilled in the art towhich it apperta-ins'to make and use the same.

VMy invention relates tir-pipe couplings and consists of two members having diagonal meeting faces, and continuously alining passages, and a coupling nut binding Vsaid faces together, eaeh member bai-ing an exterior protulwrance, and a bolt passing through said protubei'anees.r

In the accompanying drawings: Figure 1 is a side elevation partly in section ofa coupling embodying my improvements the dotted lines indicating two ofthe positions which one-of the coupling members may assume with relation to the other; Fig. 2 is a central longitudinal section of Fig. 1; Fig. 3 is a perspective view of one of the vcoupling members; and Fig'. Ltis a similar view of the other coupling member. v

Referring to the drawings for a more par? vticular description of the invention 1 indi- .eates the-coupling consisting of t-wo sleeves g 2 and 3, respectively, having internal screw `threads 4 in their outer ends adapted to receive the vpipes 5 to be coupled. lf desired, however, it is evident that the pipes 5' to be coupled may be connected with tlieouter ends of the' coupling sleeves by expanding' the pipe ends'in-thc sleeves or shrinking said sleeves over said pipe ends. 'llie coupling members' are provided -with diagonally and oppositely disposed inner ends. '.lhe

'.iunerend of the coupling'iiicmber 3 pro,-

,vided with tl'ie exteriorly threaded flange 6, while the inner end .of the other coupling sleeve 2 is provided witlran' outwardly ex- -tending flange 7'whieh fits against the flange f;v 'lhe face of. the flange (Sis provided witli an annular groove 8,- whichv receives 'a cor respol'iding tongue 9 formed on the face of the flange 7. 'llie groove and tongue are suitably ground to provide a Huid-tight fit between them, or if desired, suitable pack-r ing-may be interposed between the groove and tongue. A coupling'nut- 2)' screws. on the exteriorly threaded flange ot the eou- :specification of Letters Patent.

and is provided'at one edge with an inwardly extending fla-nge v1f) which fits against'the shoulder 12 formed by recessing the inner edge ofthe shoulder 7. By

Patented May 9,1911. Application filed September 27, 190'9. Serial No. 519,722. i

tion the coupling members or sleeves are drawn tightly together. The coupling vnut may provided with a peripheral rim'or flange 123 which may besuitably recessed at different points, as at 14, to provide" for the use of a spannerwreneh in tightening the coupling.V Y Y In addition to the meansabove described for connecting the coupling sleeves together a coupling bolt l4"is passed through the sleeves preferably at rightlangles to the inner or meeting ends of the coupling sleeves,

and a capped nut 15 screwed onthefthreaded end ot the bolt.. Soft copper i 'ushers 16 are preferably arranged between the headl of the holt, and the nut and the bearing shoulders 17 of-tlie coupling sleeves'to prevent any leakageat these points. Thecoupling bolt is preferably of stay-boltsteel 'of high tensile strength. i Y I lln practice, by unlooseiiing the coupling member 9 either of the coupling sleeves may be turned in either direction to a position at right angles to the other coupling sleeve or tol this construction my coupling not only serves every function of the ordinary pipe flange coupling. pipe union for elbow, but possesses the added advantages of adaptation to the various Yangles required iii practiceespecially in diilieult places where any of the above mentioned fittings could not be used. Y l

By the use. of-my coupling it is possible to run any pipe line in any direction by the shortest. practical course and with the least number ot abrupttui'ns and consequent-ly with a less number'of lineal feet of pipe.-4 lVhile eliminating the necessity for right.

angled turns, it provides convenient means' 'for making sueh connections, if absolutely ueeessary.' lt also permits the removal and toany angle less than a right angle. Owing loe renewal of any section in the line atany the. need for special tools, while the joints may be arranged in ashorter period of time pointiu the system without pipe ciitt-ing'o '105 and with less labor than in the ordinary fitting. y i f lt Iis to be particularly observedthat by eini'iloying the tongue S) and theconnecting bolt 14 when the coupling sleeves'are bolted` v togethith out destro bi'ned tens' ey can not be'pulled apart with-r mgv and .overcoming the come s trng'thof the tong* .From the foreoing dscriptlonjtnke in.

`ing diagoha eA and bolt.` l 15 e aocoinpanyin comprisin two mmbershv` meetingaoes, and cont1nu. 

